将C矩阵(指向指针的指针)划分为t×t网格的平铺

#include <stdio.h>
#include <stdlib.h>

void tileMatrix(int **matrix, int rows, int cols, int t) {
    int numTilesX = (cols + t - 1) / t;
    int numTilesY = (rows + t - 1) / t;

    for (int i = 0; i < numTilesY; i++) {
        for (int j = 0; j < numTilesX; j++) {
            int startRow = i * t;
            int endRow = startRow + t < rows ? startRow + t : rows;
            int startCol = j * t;
            int endCol = startCol + t < cols ? startCol + t : cols;

            printf("Tile (%d, %d): ", i, j);
            for (int r = startRow; r < endRow; r++) {
                for (int c = startCol; c < endCol; c++) {
                    printf("%d ", matrix[r][c]);
                }
            }
            printf("\n");
        }
    }
}

int main() {
    int rows = 6;
    int cols = 6;
    int t = 2;

    // 动态分配内存
    int **matrix = (int **)malloc(rows * sizeof(int *));
    for (int i = 0; i < rows; i++) {
        matrix[i] = (int *)malloc(cols * sizeof(int));
    }

    // 初始化矩阵
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            matrix[i][j] = i * cols + j;
        }
    }

    // 平铺矩阵
    tileMatrix(matrix, rows, cols, t);

    // 释放内存
    for (int i = 0; i < rows; i++) {
        free(matrix[i]);
    }
    free(matrix);

    return 0;
}